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Minerals in a general geology course Quiz Stats

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Description Mineral Name % Correct
Silicate mineral that has a hardness of 7 and can have a crystal form with 6 sidesQuartz
87.3%
Nonsilicate mineral that can fizz in HCl acidCalcite
84.9%
Silicate mineral that can feel soapy; Hardness=1Talc
79.2%
Nonsilicate mineral that has a greenish-black streak, looks like gold, and can be cubicPyrite
79.1%
Nonsilicate mineral that can be magneticMagnetite
78.6%
Nonsilicate mineral that is used in pencil lead, can feel greasy, and leaves a gray streakGraphite
78%
Silicate mineral that is harder than glass and can appear olive greenOlivine
77.9%
Nonsilicate mineral that can have 3 planes of cleavage at 90 degrees and taste like saltHalite
74.1%
Nonsilicate mineral with red streakHematite
67.7%
Nonsilicate mineral with hardness of 2Gypsum
65.1%
Description Mineral Name % Correct
Silicate mineral that can have 1 plane of cleavage and appear darkBiotite
64.5%
Silicate mineral that can have 1 plane of cleavage and appear clearMuscovite
61.1%
Nonsilicate mineral that is very dense; State mineral of MissouriGalena
58.2%
Silicate mineral with 2 planes of cleavage and exhibits striationsPlagioclase
53.6%
Nonsilicate mineral with 4 planes of cleavage; Hardness=4Fluorite
52.8%
Silicate mineral that has 2 planes of cleavage at 90 degrees and exhibits exsolution lamellae; Hardness=6Orthoclase
48.6%
Silicate mineral that can appear deep red and has conchoidal fractureGarnet
46.3%
Silicate mineral that can appear black with 2 planes of cleavage not at 90 degreesHornblende
41.3%
Nonsilicate mineral with yellow streak that smells like sulfurSphalerite
33.4%
Silicate mineral that can be chalkyKaolinite
27.5%

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